Looking for a professional Android Studio Dev to optimize for me some small fix

Hello everyone.

I'm looking for a freelancer to do some simple optimized task for me:
- Optimize the country list in the new order.
- Remove country lock so players can play the country as their need.
- Change welcome text to another.

Country list:

America: usa, canada , mexico, brazil, colombia, argentina, peru

Euro: germany, france, italy, spain, netherlands, greece, portugal, belgium, ireland, uk

Asia: india, japan, korea, vietnam, russia, indonesia, thailand

Australia: australia

Africa: southafrica, moroco

Project link will send after assigned the job.

Thanks you.